How Tear Gas Works: A Rundown of the Chemicals Used on Crowds temim 12:08 AM temim There are two broad types of tear gas—and they’re both engineered to cause pain -- Read more on ScientificAmerican.com from Scientific American News https://ift.tt/2DSuU9h via IFTTT Twitter Facebook Google Tumblr Pinterest Artikel Menarik Lainnya Can 3-D Printing Produce Lung and Liver Tissue for Transplants?New technique creates working models—with a little help from grocery-store food coloring -- Read mChildren Change Their Parents' Minds about Climate ChangeStudy of students schooled on the issue showed them going on to shift their elders’ attitudes -- RAn AI System Spontaneously Develops Baby-Like Ability to Gauge Big and SmallOn its own, the neural network seems to recap a process experienced by human infants -- Read more Are We More Attracted to People Who Look like Our Parents?Though we might be drawn to people who have physical commonalities with us and therefore our parentHow Old Are Saturn's Rings? The Debate Rages OnPinning down the ring system’s age has profound implications for the entire Saturnian system -- ReWatching Apollo 11 with NASA Historian Bill BarryThe agency’s chief historian discusses the film and what the moon missions can teach us about globa
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